please solve question

Question

. Is the relationship shown by the data linear? If so, model the data with an equation.


x
y
1
5
5
10
9
15
13
20
 
 


 

Answer 1

Your entry is not set up properly.
Is this...

x | y
--- |------
1 | 5
5 | 10
9 | 15
13 | 20

The slope between any 2 points is 5/4

so this is linear.

 

For slope intercept form y=mx+b:
y = (5/4)x + b

Using (1,5) as (x, y) find b
5 = (5/4)(1) + b
b = 5 - 5/4 = 15/4 or 3 3/4

y = (5/4)x + 15/4

 

If you don't like the fractions the multiply

through by 4 and put in standard format

of ax + by = c

 

4y = 5x + 15

5x - 4y = -15